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SSMB/SSMC 50 Ohm Connector

Brand: ITT Cannon

This range of 50 ohm microminiature radio frequency connectors is suitable for both military and commercial equipment operating at frequencies up to 4 GHz (SSMB) and 12.4 GHz (SSMC).

They provide a choice of Snap-on (SSMB) or Screw-on (SSMC) and are available for a wide range of flexible cables. SSMC connectors are used where a positive mechanical engagement is required and where space permits the use of torque wrenches.

SSMB connectors are quick disconnect versions of the SSMC and are used in applications where limited space prohibits the use of torque wrenches or when components or modules must be quickly changed to keep down time to a minimum.
Features
  • Small size
  • Low mass
  • Close packing density
  • Used in airborne applications

Specifications

Brand

Approvals & Certifications

  • Mill Certificate

Cable Type

  • Flexible

Electrical Rating

  • At Sea Level: 250 V RMS at 21 Km (70 K feet) = 60 V RMS
  • Contact: 1 A (DC) - Max.

Enclosure Finish

  • Center Contacts, Metal Parts: Gold-Plated
  • Metal Parts: Nickel-Plated to Meet the Finish & Corrosion Requirements of MIL-C-39012

Enclosure, Body Material

  • Brass, Half Hard

Frequency

  • SSMB: 0 to 4 GHz
  • SSMC: 0 to 12.4 GHz

Insulation Resistance

  • 1,000 megaohms

Load Impedance

  • 50 ohms

Materials of Construction

  • Crimp Ferrule: Annealed Copper Alloy
  • Insulators: PTFE
  • Lockwashers: Phosphor Bronze
  • Male & Female Contacts: Beryllium Copper

Resistance

  • Contact Resistance (Center Contact): 4 Milliohms, Max.
  • Contact Resistance (Outer Contact, Braid to Body): 1 Milliohm, Max.

Shock

  • MIL-STD-202, Method 213, SSMB: Test Condition B, 75 G at 6 milliseconds, 1/2 Sine
  • SSMC: Test Condition C, 100 G at 6 milliseconds, 1/2 Sine

Temperature Range

  • -65° to 165° C (-85° to 329° F)

Torque

  • Locknut Torque: 0.28 to 0.35 Nm (2.47 to 3.09 In/Lbs)
  • Mating Torque: 0.2 to 0.23 Nm (1.77 to 2.03 In/Lbs)
  • SSMC: 0.11 Nm (0.97 In/Lbs) - Max.

Vibration

  • Vibration, High Frequency MIL-STD-202, Method 204, SSMB: Test Condition B 15 G
  • Vibration, High Frequency MIL-STD-202, Method 204, SSMC: Test Condition D 20 G

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